<i>XMM</i>-EPIC observation of MCG-6-30-15: direct evidence for the extraction of energy from a spinning black hole?

Wilms, J.; Reynolds, C. S.; Begelman, Mitchell C.; Reeves, J. N.; Molendi, S.; Staubert, R.; Kendziorra, E.

doi:10.1046/j.1365-8711.2001.05066.x

Cited by 310 publications

(364 citation statements)

References 33 publications

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“…In agreement with the ASCA-based conclusions of Iwasawa, the X-ray reflec- [218] tion features were found to be very broad and very strong (see Fig. 13).…”

Section: Is the Black Hole Rapidly Spinning?supporting

confidence: 86%

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Fluorescent iron lines as a probe of astrophysical black hole systems

2003

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“…In agreement with the ASCA-based conclusions of Iwasawa, the X-ray reflec- [218] tion features were found to be very broad and very strong (see Fig. 13).…”

Section: Is the Black Hole Rapidly Spinning?supporting

confidence: 86%

“…The first XMM-Newton observation of this source happened to catch it in a prolonged DM state. The superior sensitivity of these instruments allowed a much more detailed study of this enigmatic state to be conducted [218].…”

Section: Is the Black Hole Rapidly Spinning?mentioning

confidence: 99%

Fluorescent iron lines as a probe of astrophysical black hole systems

2003

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“…This is probably unrealistic: most black holes are expected to be spinning, some with angular momenta close to the unattainable extremal limit a ≡ J 2 /M 2 = a max = 1 in geometric units. There is some observational evidence for black holes in the stellar mass range with spins up to a = 0.94, and also of galactic black holes with similarly large spins [40,41].…”

Section: The Evaporation Time Of Large Black Holesmentioning

confidence: 99%

Black Hole Astrophysics in AdS Braneworlds

Emparan¹,

García-Bellido²,

Kaloper³

2003

J. High Energy Phys.

101

102

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We consider astrophysics of large black holes localized on the brane in the infinite RandallSundrum model. Using their description in terms of a conformal field theory (CFT) coupled to gravity, deduced in Ref.[1], we show that they undergo a period of rapid decay via Hawking radiation of CFT modes. For example, a black hole of mass few × M ⊙ would shed most of its mass in ∼ 10 4 − 10 5 years if the AdS radius is L ∼ 10 −1 mm, currently the upper bound from table-top experiments. Since this is within the mass range of X-ray binary systems containing a black hole, the evaporation enhanced by the hidden sector CFT modes could cause the disappearance of X-ray sources on the sky. This would be a striking signature of RS2 with a large AdS radius. Alternatively, for shorter AdS radii, the evaporation would be slower. In such cases, the persistence of X-ray binaries with black holes already implies an upper bound on the AdS radius of L < ∼ 10 −2 mm, an order of magnitude better than the bounds from table-top experiments. The observation of primordial black holes with a mass in the MACHO range M ∼ 0.1 − 0.5 M ⊙ and an age comparable to the age of the universe would further strengthen the bound on the AdS radius to L < ∼ few × 10 −6 mm. 1 roberto.emparan@cern.ch 2

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“…• The high energy spectrum obtained from BeppoSAX shows a strong Compton-reflection signature ([12,17]), as did the earlier XMMNewton/RXTE observation ( [18]). There was no evidence for a low energy cut-off or roll-over in [16].…”

Section: Resultsmentioning

confidence: 72%

“…The results have been discussed in a series of papers ([12,13,14,15,16,17]) and have been compared with the earlier XMM-Newton observation taken in 2000 ( [18]). …”

Section: Introductionmentioning

confidence: 99%